saying hello and had a ?

Hi there I'm new to the sport and just bought a 2004 polaris freedom for $3000 cdn .The guy I bought the ski from says the guy took the bilge motor out and he never put one in because he never needed it .So I am here asking If I do need one and how much they cost around ? Not much summer left and would like to drive it like that but if I need it bad I will fix it.I test drove it for 45 mins and it was fine but I was not really getting crazy with it.Well thanks for any info and glad to be here on this great site.